Firearm



J. D. PEDERSEN.`

FIREARM.

APPLICATION FILED SEPT. l5, 1919.

Patentqd Sept. 19, 1922.

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J. D. PEDERSEN.

FIREARM.

APPLICATION FILED s?T.15. 1919.

Patented Sept. 19, 1922.

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By his J. D. PEDEHSEN.

FIREARM.

APPLICATION man 55m15.191s.

l ,429,62 1 PatentedSept. 19, 1922.

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.Patented sept. 19, 1922.

UNITED STATES JOHN D. PEDEBSEN, OF JACKSON, WYOMING.

FIBEABM.

Original application led August 9, 1917, Serial No. 185,394. Divided and this application iiled September 15, 1919. Serial No. 328,766.

, To all whom t may concern:

Be it known that I, JOHN D. PEDEBSEN, a citizen of the United States, residin in Jackson, in the county of Lincoln and tate of W oming, have invented certain newand usefu Improvements in Firearms, of which the following is a specification.

My present invention relates more especially to that class of firearms in which the frame and receiver-together constitut ing preferably a closed framework for the gun-chamber-are separable by sliding movement of the frame out of engagement with interlocking guide faces suitably located on the two framework members.

My present invention is applicable to firearms having frames or receivers of various proportions, and to those having various kinds and arrangements of operating mechanism within the receiver. The present invention, however, is particularly applicable as a means for assembling the two principal parts of the frame in that large class of small arms which includes firearms of the kind described and illustrated in my U. S. Patent No. 1,317,988, dated October 7, 1919, application filed June 6, 1916, Serial No. 101,931, renewal -Serial No. 185,394, filed August 9, 1917, the present application being a division of said application Serial No.

A principal object of my present inven tion is to provide a"gunframe construction or take-down, whereby the firearm may be quickly separated between the gun-stock and the gun-barrel, and, when thus taken down may be quickly re-assem-bled by a sliding movement of one part into interlocking engagement with the other part. I thus provide for opening t-he mechanism chamber in the gun-frame by effecting the separation of the frame by a sliding movement of-one frame part relative to the other, and thereby provide for certain details of the operating mechanism being removed from and replaced .into operative relation to the other details.

A feature of my present invention is the means, applicable to that class of firearms which is provided with a breechaction comprising a sliding breech -block, for removably mounting the sliding breech block member' of such breechaction in the mechanism chamber of the firearm.

A feature of the main frame consists in the mechanism chamber having the lower side thereof open through its entire length when the guard-frame is removed, and having the guard-frame arranged, when in place, for enclosing only the rearward part of said chamber. Thus the forward part of the open lower side of said chamber constitutes,-and is available for use as-a combined loading-in and shell-eject-ing port or opening, so that the framework may be said to have or require no opening formed there- 1n especially for either of said purposes. With these objects in view the guard-frame is provided with locking means at the forward end thereof forretentively engaging with co-acting locking means located on the lower edges of the side walls of the main frame, and these co-acting locking means are arranged for co-action with frame aligning means which preferably consists of interlocking-ribs and grooves, or interlocking ribs, substantially such as herein illustrated.

A further feature of my present invention is the arrangement of the rib and groove frame aligning means, or the interlocking rib frame aligning means, as the case may be, to prevent outward or inward fieXure of the side walls of the main frame or receiver, or outward flexure onl of such side walls.

A further feature o my present invention is the rim and clamp means for detachably but firmly connecting the rearward end of the main frame or receiver of the firearm and the rearwardly extending portion of the guide-frame thereof.

In the accompanying drawings forming part of this specification, for convenience of illustration I have shown my invention 'as applied to such a magazine arm as is shown in my said Patent 1,317 ,988, to which reference may be had.

In the accompanying drawings Figure 1, is a fragmentary view or side elevation of a magazine iirearm, partly broken away, showing a preferred form of my invention, the main frame or receiver and the guard-frame being in connected or locked relation.

Fig. 2, is a fragmentary side view or side 1 of the elevation' of the same magazine firearm,

of the guard-frame, showing vthe horizontaly alignment grooves, the locking means at the forward end of the guard-frame, and a portion of the groove and clamp means for detachable connection pertaining to the guardframe.

Fig. 4, is a front end view of the guardframe showing in detail -the upwardly extending alignment grooves, the rim and clam means, a portion of the groove means for etachable connection pertaining to the guard-frame, and the means for locking at the forward end of the guard-frame.

Fig. 5, is a detail sectional view of the rim and groove and clamp means for detachably connecting the rear end of they main frame and the upwardly extending portion of the guard-frame.

Fig. 5, is a detail sectional view of a modified form of the detachably connecting means illustrated in Fig. 5.

Fig. 6, is a fragmentary side view or side elevation of a magazine firearm, partly broken away, showing a modified form of my invention to provide for a long magazine chamber of the firearm, the guard-frame being extended forwardly and provided with locklngmeans engaging the forward end of the main-frame or receiver, the main frame or receiver and guard-frame having horizontal and upward 'extending interlocking rib alignment means.

Fig. 7 is a fragmentary under plan view or view from the under side of Fig. 6.

Fig. 8, is a sectional view on the line 8-8 of Fig. 6, looking in the direction of the arrows.

Fig. 9, is a sectional view on the line 9 9 of Fig. 6, looking in the direction of the arrows.

Fig. 10, is a fragmentary side view or side elevation of a magazine firearm comprising a main-frame or receiver and guard-frame provided with alignment, locking and detachably connecting means as herein illustrated, and provided with a breechaction comprising a sliding breech-block, the guardframe-shown in outline-being disconnected and removed from the main frame or receiver, and said sliding breech-block member being retracted and in position for rebreech-block of a breechaction illustrated in gimilar characters designate like parts in all the views.,

The two part framework, in the preferred form and arrangement thereof herein illustrated, and comprising the main frame or receiver 2, and the guard-frame 3 may be separably connected by interlocking means which are appurtenant thereto; and are used in combination with some suitable locking device, the main frame or receiver and the guard-frame forming what'I termlfor purposes of description the barrel-stock midportion of the firearm. One arrangement of such means and device is indicated in, and will now be described in i connection with, Figs 2 and 3. For holding the receiver 2 in proper alignment with, and in position laterally of, the guard-frame 3, the main frame or receiver 2, is provided at each side thereof, with ribs 2, 2"', Fig. 2, extending rearwardly and upwardly curving at the rear end, which ribs closely engage in corresponding grooves 3, 3F', which curve with the upwardly extending portion 5 of the guard-frame 3 and are formed in the guard-frame, Fig. 3. At the forward end of its horizontal or forward extending branch or arm 4, the guard-frame 3, has projections 3d, 3d', Figs. 2, 3 and 4:, with adja. cent recesses or pockets 3e, 3e', which projections 3d, 3d', closely engage .in recesses 2k, 2k', having adjacent projections 2m, 2m', which conform to the recesses or pockets 3", 3e', there being a recess as 2k in, and a projection as 2ln on each side-wall of the main frame or receiver 2.

When the projections 3d, 3d', closely engage the recesses 2k, 2V, and the projections 2m, 2m', engage the recesses or pockets 3e, 3e', separation of the guard-frame 3 from the main frame or receiver 2 is prevented, when the two said parts are assembled together, the inner face of each of the projections 2m, 2m', contacting or engaging the inner sidewall of each of the recesses 3e, 3e', and preventing inward flexure of the guard-frame 3 and main frame-or receiver 2, as from an external blow upon the side walls of the receiver 2.

When these parts are so assembled the nut ortion 3c, Fig. 2, rests within a recess 3', ig. 2, formed in the main frame or receiver 2, while the cupped-head screw 2l has-the head rim 21a thereof engaging in an annular groove 2J, 31, formed partly in the main frame, or receiver 2, and partly in the guard-framey 3, whereby said rim 2l engages forwardl the main frame or receiver 2, and rearwar y the guard-frame 3. Thus the screw-head 21 serves as a clamp device which engages, by means of said rims, with both the main frame or receiver and the guard-frame, and thereby firmly connects these members. By partially withdrawing the screw 21, to disengage the head-rim 21 from the annular groove 2f, 3, the main frame or receiver 2 may be slid forwardly on the guard-.frame 3, whereupon the guardframe may be lowered and removed, to-

gether'with any mechanism that Vmay be asf or inward flexure of the side-walls of the sembled thereon.

One feature of my invention relates to the combined loading-in and shell-ejection port or opening, such as 2g, which is comprised in the barrel-stock mid-portion of the firearm, the rear end of such port or opening being located about midway of such barrelstock mid-portion. In the preferred form of my invention the rear end of the loadingin shell-ejection port or opening 2g is formed by the forward end of the guard-frame 3, and the sides of such port or opening are formed by the side-walls of the main frame or receiver 2, the forward end of such port or opening being formed in said main frame or receiver.

The construction herein illustrated of the two-part frame, and the arrangement of the breechaction slide or breech-block 6, provided with the two removable guides 6s, 6s', affords among other advantages, an effec-tive means for limiting the retraction of the breechaction by the direct engagement of a stop-face, as 6P Fig.` 11, of the slide or breech-block 6 with an abutment-face, as 2p of the main frame or receiver 2. When the rearward frame member or guide-frame 3, is removed, the slide or breech-block 6, when retracted, vwill project far enough rearwardly of the main frame or receiver 2 for raccess to and the removal of the guide-retaining pin 6", Fig. 10, whereupon the guides 6s, 6s', may be withdrawn rearwardly from the guide-ways 2S, 2 and from between the slide-block or breech-block 6 and the walls of the main frame 0r receiver 2, after which the slide or breech-block may be bodily lowered in an evident manner and thus taken out of the main frame or receiver for cleanin or any other desired purpose.

y this organization of said members a fixed abutment, as 2D, may be provided as an integral part of the main frame or receiver, and may be located, Fig. 10, directly in the line of movement of said stop-face 6P, while providing a convenient method of assembling and taking down the mechanism. Said guide-faces 6s, 6B', fit in the guide-ways 2s, 2s', respectively, of the main -frame or receiver 2, and are preferably interlocked, by a tongue and groove construction,with the slide or breech-block 6, Figs.

This construction provides great strength,

and also for a face sliding movement of the breech-block in the frame, while the projecting ribs or guides 6B, 6B', engage in the respective channel-form guide-ways 2E, 2B', of the main frame or receiver.

The ribs 2, 2', of the main frame or receiver 2, engaging, as herein stated, the grooves 3D, 3', of the guard-frame 3, provide a means for/'preventing either outward f' main frame or receiver 2, which side-walls in practice ma be relatively thin.

In the modi ed form of my invention as shown in Fig. 6, the forwardly extending branch or arm 4 of the guard-frame 3 is made longer than the forwardly extending branch or arm 4 thereof, shown in the first herein describedA form of my invention, such extension 4 -being almost the length of the thereof, instead of bein formed in the main frame or receiver 2. he branch or arm 4l is provided at its forward end with a projection or tongue 4d, which engages or is received in a recess 3k in the forward end of the main frame or receiver 2,'to lock the guard-frame to the main frame or receiver,

the projection or tongue 4d being rounded to readily engage the recess 3k, which recess is rounding to receive said tongue and also to facilitate the forming of the recess in the main frame or receiver 2. The rounded sidefaces of the projection or tongue 4d are arranged to engage or contact with the rounding side walls of the recess 3k, and thereby prevent iexure of the guard-frame 3 and main-frame or receiver 2.

The means for sliding and alignment consists of ribs 411, 4', on the mam frame or receiver 2 extending rearwardly and curving upwardly which interlockingly engage upwardly curving and forwardly extending ribs 5, 5, on the guard-frame 3, Figs. 6 and 8, which ribs also prevent outward lexure of the side-walls of the main frame tending portion and below s aid mechanism chamber; interlocking means comprising pairs of oppositely disposed faces for slidlng connection of said receiver and said upwardly extending portion and arm of the guard-frame; means for detachably 'locking' said arm at t'he forward end thereof to said receiver; and means on said guard-frame en! gageable with-means on said guard-frame and engageable with means on said receiver for detachably connecting the rear end of said receiver andthe upwardly extending portion of `said guard-frame.

2 In a separable frame for firearms, in combination, frame members comprising a receiver provided with a mechanism chamber and a guard-frame provided with an upwardly extending portion and an arm extending forward y from saidv upwardly extending portion and below said mechanism chamber; interlocking means for sliding connection of` said receiver and said upwardly extending portion and arm of the guard-frame; means for detachably locking saidarm at the forward end thereof to said receiver; and screw and rimv means on said guard-frame engageable with groove means on said guard-frame and engageable with groove means on said receiver for detachably connecting the rear end of said `receiver and the upwardly extending portion of said guard-frame.

3. In a separable frame for firearms, in combination, frame members comprising a receiver provided with a mechanism chamber and a guard-frame provided with an upwardly extending portion and an arm extending forwardly from said upwardly extending portion and below. said mechanism chamber; interlocking mea-ns for sliding connection of said receiver and said up-A wardly extending portion and arm of the guard-frame; means for detachably locking said arm at the forward end thereof to said receiver; and screwand nut and rim means carried by said guard-frame, groove means in said guard-frame, and recess and groove means in said' receiver said screw means being engageable with sald nut means for engaging said rim means -withI said groove means of the guard-frame and with said groove means of the receiver, and said 4ried by said nut means being engageable. in said recess means of the receiver fordetachably connecting the rear end of lsaid receiver and the upwardly extending portion of said guard-frame. Y

4. In a separable frame for firearms, in combination, two frame members comprising a receiver providedwith a mechanism chamber, and a guard-frame provided with an upwardly extendingportion and an arm extending forwardly from said upwardly extending portion? and below -said mechanism chamber; arranged longitudinally of `said reei rei-and said ard-frame and extendingfulwarxdilv'for s iding interlocking connection arm and upwardl'yiextend ing ortion of the guard-frame; means for detac ably locking said arm at'theforward end thereof to-said receiver; and means for detachably connecting the rearendof said receiver and the upwardly extending portion of said guardframe comprisin a screw` and rim and a nut portlon carrie by sald guard-frame, grooves located part y 1n saidguard-framc and partly in said receiver,y and a recess insaid receiver for said nut portion.

5. In a separable frame for lirearms, in combination, two frame members comprising a receiver provided with a mechanism chamber and a guard-frame providedwith an upwardly, extending portion and an arm extending forwardly from said upwardly extending portion'and below said mechanism chamber; ribs arranged longitudinally on said receiver and extendin upwardly and grooves arranged longitu inally on said.

guard-frame and extending upwardly for sliding interlocking connection of said receiver and said arm and upwardly extending portion of the guard-frame; means for Adetachably locking said arm at the forward end thereof to said receiver; and a screw and rim and a nut portion car- (guard-frame, grooves located partly in sai guard-frame 4and partly in said receiver, and a recess in said receive:`

for said n ut portion for detachably connecting the rear end of said receiver and the upwardly extending portion -of said guardframe.

6. In a separable framev for firearms, in combination, two frame members comprising a receiver provided with a mechanism chamber and a guard-frame provided with an upwardl extending portion and an arm extending orwardly from said upwardly extending portion and below said mechanism chamber; means arranged longitudi nally of said receiver and said guard-frame and extending upwardly for sliding interlockingconnection of said receiver and said arm and upwardly extending portion of the guard-frame; interlocking projection and recess means for detachably locking said arm y. taai-.id recelver and sald l .frame at the forward end thereof to said receiver and preventing flexure of said arm and receiver lat said point of locking; and means for detachably connectingthe rear end of said receiver andl the upwardly extending .portion of said guard-frame.

7. In a separable frame for firearms, in combination, two frame members comprising a receiver provided with a mechanism chamber and a guard-frame provided with an upwardly extending portion and an arm extending forwardly from said upwardly extending portion and below said mechanism chamber; said receiver and said guardframe forming the barrel-stock mid-portion of the firearm and said barrel-stock midportion comprising a loading-in shell-ejection port; means arranged longitudinally of said receiver and said guard-frameand extending upwardly for sliding interlocking connection of said receiver and said arm and upwardly extending portion of the guardframe; means for detachably locking said arm at the forward end thereof to said Ieceiver; and means for detachably connecting the rear end of said receiver andthe upwardly extending portion of saidguard- 8. In a separable frame for firearms, in combination, frame members comprising a receiver provided with a mechanism chamber and a guard-frame provided with' an upwardly extending portion and an arm extending forwardly from said upwardly extending portion and below said mechanism chamber; said receiver and said guardframe forming the barrel-stock mid-portion of the rearm and said barrel-stock midportion comprising a loading-in shell-ejection port; means arranged longitudinally of said receiver and said guard-frame and extending upwardly for sliding interlocking connection of said receiver and said arm and upwardly extending portion of the guardframe; interlocking projection and recess means for detachably locking said arm at the forward end thereof to said receiver and preventing exure of said arm and receiver at the point of locking; and means for detachably connecting the rear end of said receiver and the upwardly extending portion of saidguard-frame;

9. In a sep-arable frame for firearms, in combination, two frame members comprising a receiver provided with a mechanism chamber and a guard-frame provided with an upwardl extending portion and an arm extending orwardly from said upwardly extending portion and below said mechanism chamber; said receiver and said guardframe forming the barrel-stock mid-portion of the firearm and said barrel-stock midportionl comprising a loading-in shell-ejection port, means arranged longitudinally of said receiver and said guard-frame, and extending upwardly for sliding interlocking connection of said receiver and said arm and upwardly extending portion of the guardframe; lnterlocking projection and recess means for detachably lockingsaid arm at the forward end thereof to said receiver and preventing iexure of said arm and receiver at the point of locking; and means for detachably connecting the rear end of said receiver and the upwardly extending portion of said guard-frame comprising a screw and rim and a nut portion carried by said guardframe, grooves located partly in said guardframe and partly in said receiver, and a recess in said receiver for said nut portion.

10. In a separable frame for rearms, in combination, two frame members comprising a receiver provided with a mechanism chamber and a guard-frame provided with an upward] extending portion and an arm extending orwardly from said upwardly extending portion and below said mechanism chamber; sai-d receiver and said guardframe forming the barrel-stock mid-portion of the firearm and said barrel-stock midportion comprising a loading-in shell-ejectlng port; means arranged lon itudinally of sa1d receiver and said guardame and extending upwardly for sliding interlocking connection of said receiver and said arm and upwardly extending portion of the guard-frame; interlocking projection and recess means for detachably locking said arm at the forward end thereof to said receiver and preventinglexure of said arm andreceiver at the point of locking; and means on said guard-frame engageable with means on said guard-frame and with means on said receiver for detachably connecting the rear end of said receiver and the upwardly extending portion of said guard-frame; said receiver comprising a breech action chamber provided with a breech-block retractable in said receiver and removable therefrom when retracted and when said guard-frame is detached from said receiver.

11. In a separable frame for reams, in combination, two frame members comprising a receiver provided with a mechanism chamber and a guard-frame provided with an upwardly extending portion and an arm extending forwardly from said upwardly extending portion and below said mechanism chamber; said receiver and said guardframe forming the barrel-stock mid-portion of the firearm and said barrel-stock midportion comprising a loading-in shell-ejection port; means arranged lon itudinally of said receiver and said guard-ame and extending upwardl for sliding interlocking connection of sai receiver and said arm and upwardly extending portion of the guardframe; interlocking projection and recess means for detachably locking said arm at the forward end thereof to said receiver and preventing fiexure of said arm and receiver at the point of locking; and means on said guard-frame engageable with means on said receiver comprisingr a breechaction chamber provided with a breech-block slidably re` tract-able in said receiver having al stop-face, as 6P, for engaging an abutment face, as 2P, of the receiver for limiting the retraction of said breech-block, said breech-blockv being removable-from said receiver when retracted and when said guard-frame is detached from Said receiver. 4

12. In a separable frame for firearms, in combination, frame members comprising a receiver provided with amechanism chamber and a guard-frame provided with an upwardly extending portion and an arm extending forwardly from said upwardly extending portion and below said mechanism chamber; said receiver and said guard-frame forming the barrel-stock mid-portion of the firearm and said barrel-stock mid-portion comprising a loading-in shell-ejection port; interlocking means for sliding connection of said receiver and said upwardly extending portion and arm of the guard-frame; means for detachably locking said arm at the forward end thereof to said receiver; and means for detachably connecting the rear end of said receiver and the .upwardly extending portion of said guard-frame; said receiver if!" comprising a breechaction chamber provided with a breech block slidably retractable in said receiver and removable therefrom when retracted and when said guard-frame is detached from' said receiver.

JOI-[N D. PEDERSEN. Witnesses:

-FRANoIs H. RICHARDS,

GEORGE J. BARTELS. 

